On the map: every storm report logged this day.
On the map
Storm reports for May 21, 1971
On May 21, 1971, 12 hail, 13 damaging-wind and 2 tornado reports were logged across 6 states.
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On May 21, 1971, 12 hail, 13 damaging-wind and 2 tornado reports were logged across 6 states. The largest hail reported was 4.00″ (grapefruit size) in Beaver County, OK.
Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Radar hail estimates start October 2019.
Storm reports by state
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| KS | 7 | 5 | 1 | 2.75″ |
| OK | 5 | 3 | 1 | 4.00″ |
| AR | 0 | 2 | 0 | – |
| NE | 0 | 1 | 0 | – |
| FL | 0 | 1 | 0 | – |
| MO | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Derby, KS | 26,604 | 2.75″ |
| Mulvane, KS | 7,016 | 2.75″ |
| Enid, OK | 50,519 | 1.75″ |
| Salina, KS | 46,109 | 1.75″ |
| Russell, KS | 4,325 | 1.75″ |
| Guymon, OK | 12,397 | 0.75″ |
Hail reports (12)
| Time (UTC) | Size | Location |
|---|---|---|
| 22:45 | 4.00″ | Beaver County, OK |
| 21:35 | 2.75″ | Decatur County, KS |
| 03:25 | 2.75″ | Sedgwick County, KS |
| 22:00 | 2.00″ | Saline County, KS |
| 21:04 | 1.75″ | Lincoln County, KS |
| 22:54 | 1.75″ | Saline County, KS |
| 01:45 | 1.75″ | Russell County, KS |
| 02:00 | 1.75″ | Woodward County, OK |
| 06:40 | 1.75″ | Garfield County, OK |
| 20:33 | 1.00″ | Saline County, KS |
| 06:15 | 1.00″ | Garfield County, OK |
| 21:10 | 0.75″ | Texas County, OK |
Damage, injuries and deaths
National Weather Service offices recorded about $250,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (27 events in 6 states). Before 1996 the database holds only tornado, hail and wind events, and damage was often entered as a range, so treat these figures as rough. Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Delaware County, OK | 1 | 0 | 0 | $250,000 |
Source: NOAA National Centers for Environmental Information (NCEI), Storm Events Database, as entered by National Weather Service offices; data through July 31, 2026. Damage is in dollars of the year, not adjusted for inflation.
Guides: What radar-estimated hail (MESH) is and isn't · Storm reports: preliminary vs final
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